Database System Concepts
Database System Concepts
7th Edition
ISBN: 9789332901384
Author: Henry F. Korth & S. Sudarshan Abraham Silberschatz
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 10, Problem 12E

Explanation of Solution

Opinions for handling the transaction load:

  • Query performance must be improved in a centralized system for handling the transaction load.
  • While performing Query processing, the following points must be noted,
    1. ○ Reduce the amount of memory and storage needed for query processing.
    2. ○ Maximize the throughput which means that the number of requests that are processed in a given amount of time should be increased.
    3. ○ Query Response Time has to be reduced.
    4. ○ Memory and Storage needed for processing has to be reduced.
    5. ○ Avoid Cross Product Operations as they result in huge intermediate tables that will require time for processing.
    6. ○ Perform restrictive select operations before the other operations.
  • Query Optimization is performed by following the below given steps:
    1. ○ Generating Query Tree
      • The root of this tree represents the whole query and leaf nodes are the tables of the query...

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